diff --git a/gradle.properties b/gradle.properties
index c89124a..ffc8aba 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
 group=com.github.xbaimiao.shoppro
-version=1.0.6-beta
+version=1.0.6
diff --git a/src/main/kotlin/com/github/xbaimiao/shoppro/core/item/impl/ItemsAdderShopItem.kt b/src/main/kotlin/com/github/xbaimiao/shoppro/core/item/impl/ItemsAdderShopItem.kt
index 73e13a1..aed73a9 100644
--- a/src/main/kotlin/com/github/xbaimiao/shoppro/core/item/impl/ItemsAdderShopItem.kt
+++ b/src/main/kotlin/com/github/xbaimiao/shoppro/core/item/impl/ItemsAdderShopItem.kt
@@ -36,7 +36,10 @@ class ItemsAdderShopItem(
     }
 
     override fun equal(itemStack: ItemStack): Boolean {
-        return itemStack.type == material && itemStack.itemMeta?.customModelData == custom
+        if (itemStack.hasItemMeta() && itemStack.itemMeta!!.hasCustomModelData()) {
+            return itemStack.type == material && itemStack.itemMeta?.customModelData == custom
+        }
+        return false
     }
 
     override fun vanillaItem(): ItemStack {